/Engine/Plugins/Editor/UVEditor/Source/UVEditorTools/Public/Actions/UVSeamSewAction.h
static int32 FindSewEdgeOppositePairing ( const [FDynamicMesh3](API\Runtime\GeometryCore\DynamicMesh\FDynamicMesh3) & UnwrapMesh, const [FDynamicMesh3](API\Runtime\GeometryCore\DynamicMesh\FDynamicMesh3) & AppliedMesh, int32 UVLayerIndex, int32 UnwrapEid, bool & bWouldPreferOppositeOrderOut )